From patchwork Mon Oct 26 21:36:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 1388138 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BVOdCwG4; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CKpJd3hmWz9sSn for ; Tue, 27 Oct 2020 08:44:33 +1100 (AEDT) Received: from localhost ([::1]:49204 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXAI3-0003vP-G2 for incoming@patchwork.ozlabs.org; Mon, 26 Oct 2020 17:44:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60440) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXAAa-00041G-9v for qemu-devel@nongnu.org; Mon, 26 Oct 2020 17:36:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:27835) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kXAAX-0001V1-Or for qemu-devel@nongnu.org; Mon, 26 Oct 2020 17:36:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603748205; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TVAIaUd0qn/L1hYp8sivghgZfYY52GolNO0IpyKQ81g=; b=BVOdCwG4qbAoW2J9DX7HQL0Jx1m7htucNaGcUTIyV3WmFnz4YIcIWVs1x5rqt9tVooCtaa v6BpcUJFEBOIkelCFtZ34TjGh+UhFp4Lid2+Db+4IoadZHaeI964EAVGV2nP9LbpaqBrrV 03DaFCkjdyemzBBz5mlD9TKM1QS+Gsg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-519-V-tAuQ5TPR2vp6-fHsAByA-1; Mon, 26 Oct 2020 17:36:43 -0400 X-MC-Unique: V-tAuQ5TPR2vp6-fHsAByA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 770FE8064C0 for ; Mon, 26 Oct 2020 21:36:42 +0000 (UTC) Received: from scv.redhat.com (ovpn-118-238.rdu2.redhat.com [10.10.118.238]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8047D19728; Mon, 26 Oct 2020 21:36:41 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org, Markus Armbruster Subject: [PATCH v2 03/16] qapi/expr.py: constrain incoming expression types Date: Mon, 26 Oct 2020 17:36:24 -0400 Message-Id: <20201026213637.47087-4-jsnow@redhat.com> In-Reply-To: <20201026213637.47087-1-jsnow@redhat.com> References: <20201026213637.47087-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/26 02:39:09 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: John Snow , Eduardo Habkost , Cleber Rosa Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" mypy does not know the types of values stored in Dicts that masquerade as objects. Help the type checker out by constraining the type. Signed-off-by: John Snow Reviewed-by: Eduardo Habkost Reviewed-by: Cleber Rosa --- scripts/qapi/expr.py | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) diff --git a/scripts/qapi/expr.py b/scripts/qapi/expr.py index 5694c501fa38..f7c7f91326ef 100644 --- a/scripts/qapi/expr.py +++ b/scripts/qapi/expr.py @@ -15,9 +15,17 @@ # See the COPYING file in the top-level directory. import re +from typing import MutableMapping, Optional from .common import c_name from .error import QAPISemError +from .parser import QAPIDoc +from .source import QAPISourceInfo + + +# Expressions in their raw form are JSON-like structures with arbitrary forms. +# Minimally, their top-level form must be a mapping of strings to values. +Expression = MutableMapping[str, object] # Names must be letters, numbers, -, and _. They must start with letter, @@ -287,9 +295,20 @@ def check_event(expr, info): def check_exprs(exprs): for expr_elem in exprs: - expr = expr_elem['expr'] - info = expr_elem['info'] - doc = expr_elem.get('doc') + # Expression + assert isinstance(expr_elem['expr'], dict) + expr: Expression = expr_elem['expr'] + for key in expr.keys(): + assert isinstance(key, str) + + # QAPISourceInfo + assert isinstance(expr_elem['info'], QAPISourceInfo) + info: QAPISourceInfo = expr_elem['info'] + + # Optional[QAPIDoc] + tmp = expr_elem.get('doc') + assert tmp is None or isinstance(tmp, QAPIDoc) + doc: Optional[QAPIDoc] = tmp if 'include' in expr: continue